<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="./index.css">
  <style>
    .father {
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .son {
      /* visibility: hidden; */
      opacity: 0;
    }
  </style>
</head>

<body>
  <div class="father">
    <div class="son"></div>
  </div>
  <script>
    var div = document.querySelector('.son')
    div.addEventListener('click', () => {
      console.log(1);
    })
  </script>
</body>

</html>